Submission #673158

#	Time	Username	Problem	Language	Result	Execution time	Memory
673158		US3RN4M3	Art Collections (BOI22_art)	C++17	100 / 100	1505 ms	764 KiB

art

#include "art.h"
#include<bits/stdc++.h>
using namespace std;
//
// --- Sample implementation for the task art ---
//
// To compile this program with the sample grader, place:
//     art.h art_sample.cpp sample_grader.cpp
// in a single folder, then open the terminal in this directory (right-click onto an empty spot in the directory,
// left click on "Open in terminal") and enter e.g.:
//     g++ -std=c++17 art_sample.cpp sample_grader.cpp
// in this folder. This will create a file a.out in the current directory which you can execute from the terminal
// as ./a.out
// See task statement or sample_grader.cpp for the input specification

void solve(int N) {
	vector<int> vals(N);
	for(int i = 0; i < N; i++) {
		vector<int> v;
		for(int j = 0; j < N; j++) {
			v.push_back((i + j) % N + 1);
		}
		vals[i] = publish(v);
	}
	vector<int> deltas(N);
	for(int i = 0; i < N; i++) {
		deltas[i] = vals[(i + 1) % N] - vals[i];
	}
	//deltas[i] = N - order[i] - (order[i] - 1)
	//y = N - 2x + 1
	//2x = N + 1 - y
	//x = (N + 1 - y)/ 2
	vector<int> pos(N);
	for(int i = 0; i < N; i++) {
		pos[i] = (N + 1 - deltas[i]) / 2;
	}
	vector<int> ans(N);
	for(int i = 0; i < N; i++) {
		ans[pos[i] - 1] = i + 1;
	}
	answer(ans);
}

Compilation message (stderr)

interface.cpp: In function 'int publish(std::vector<int>)':
interface.cpp:20:17: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   20 |     if(v.size() != N) {
      |        ~~~~~~~~~^~~~
interface.cpp: In function 'void answer(std::vector<int>)':
interface.cpp:36:17: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   36 |     if(v.size() != N) {
      |        ~~~~~~~~~^~~~

• Subtask 1: 5 / 5
• Subtask 2: 15 / 15
• Subtask 3: 15 / 15
• Subtask 4: 15 / 15
• Subtask 5: 20 / 20
• Subtask 6: 30 / 30